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A compact RF/analog front-end for microwave RFID transponders

: Gay, N.; Fischer, W.-J.


Institute of Electrical and Electronics Engineers -IEEE-:
SCD 2011, IEEE Semiconductor Conference Dresden. Technology, Design, Packaging, Simulation and Test. CD-ROM : 27-28 Sept. 2011, Dresden, International Conference, Workshop and Table-top Exhibition
New York, NY: IEEE, 2011
ISBN: 978-1-4577-0431-4
ISBN: 978-1-4577-0430-7
ISBN: 978-1-4577-0429-1
Art. 6068752
Semiconductor Conference <2011, Dresden>
Conference Paper
Fraunhofer IPMS ()

This paper deals with the design and implementation of a flexible, very compact RF Analog Front-End (AFE) for RFID transponders working in the UHF and microwave frequency ranges. The AFE is part of a complex SOC providing long-range RFID-based communications in combination with on-chip sensors for temperature and humidity as well as other mixed-signal modules like ADCs, DACs and signal conditioning circuitry. The RFID-based AFE is one important piece of a modular platform technology employed in the quick implementation of customized applications. The entire front-end comprises an area of 0.3 sq. mm and delivers over 100W of power at a readout distance of 3m with a 3 dBi dipole antenna an a RFID-reader nominally radiating 3W at 868 MHz.